On Mon, Dec 7, 2020 at 8:30 AM Juergen Gross <jgr...@suse.com> wrote:
>
> Commit 9e2369c06c8a18 ("xen: add helpers to allocate unpopulated
> memory") introduced usage of ZONE_DEVICE memory for foreign memory
> mappings.
>
> Unfortunately this collides with using page->lru for Xen backend
> private page caches.
>
> Fix that by using page->zone_device_data instead.
>
> Fixes: 9e2369c06c8a18 ("xen: add helpers to allocate unpopulated memory")
> Signed-off-by: Juergen Gross <jgr...@suse.com>Would it make sense to add BUG_ON(is_zone_device_page(page)) and the opposite as appropriate to cache_enq? Either way: Reviewed-by: Jason Andryuk <jandr...@gmail.com>
